Agree with dvjorge. The people who fear monger about Diflucan are usually the ones who are selling natural alternatives. Fluconazole has been extensively researched and used by countless millions around the world safely, and while liver dysfunction is listed as a possible side effect, it's quite a rare side effect. That's why any (official) website you go to will list liver dysfunction under the rare side effects section.
I took fluconazole under my doctor's prescription and she didn't even mention anything about liver dysfunction, nor did she monitor me for liver dysfunction. She just wanted to give me something that would clear up my Candida infection (which fluconazole did).